53649228 has 12 divisors (see below), whose sum is σ = 125181560. Its totient is φ = 17883072.

The previous prime is 53649227. The next prime is 53649241. The reversal of 53649228 is 82294635.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (53649221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2235373 + ... + 2235396.

Almost surely, 2^53649228 is an apocalyptic number.

It is an amenable number.

53649228 is an abundant number, since it is smaller than the sum of its proper divisors (71532332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53649228 is a wasteful number, since it uses less digits than its factorization.

53649228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4470776 (or 4470774 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 53649228 is about 7324.5633316943. The cubic root of 53649228 is about 377.1561197455.

The spelling of 53649228 in words is "fifty-three million, six hundred forty-nine thousand, two hundred twenty-eight".